naa a22 4500 510812392 CHVBK 20180411083448.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1134/S0081543813040032 doi (NATIONALLICENCE)springer-10.1134/S0081543813040032 Numerical and experimental simulation of wave formation during explosion welding [Elektronische Daten] [S. Godunov, S. Kiselev, I. Kulikov, V. Mali] The results of numerical and experimental simulation of wave formation under an oblique impact of metal plates during explosion welding are presented. The numerical simulation was carried out on the basis of the Maxwell relaxation model and by a molecular dynamics method. In the experiments, the impact of metal plates was investigated with X-ray radiography of phenomena in front of and behind the point of contact, and the preserved samples were studied metallographically. It is shown that the numerical simulation correctly reproduces the formation and evolution of waves on the contact boundary. Simultaneously, constraints are pointed out that prohibit the use of the elastoplastic model in the impact zone of the plates starting from the moment when the material of the plate in this zone is decomposed into thin jets. In this zone, the dependence of the specific deformation energy E on the tensor C j i is no longer described by a convex function. It is this fact that motivated the transition to the molecular dynamics model. Pleiades Publishing, Ltd., 2013 Godunov S. Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 4, 630090, Novosibirsk, Russia aut Kiselev S. Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Institutskaya ul. 4/1, 630090, Novosibirsk, Russia aut Kulikov I. Institute of Computational Mathematics and Mathematical Geophysics, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Lavrent'eva 6, 630090, Novosibirsk, Russia aut Mali V. Lavrent'ev Institute of Hydrodynamics, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Lavrent'eva 15, 630090, Novosibirsk, Russia aut Proceedings of the Steklov Institute of Mathematics Springer US; http://www.springer-ny.com 281/1(2013-07-01), 12-26 0081-5438 281:1<12 2013 281 11501 https://doi.org/10.1134/S0081543813040032 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0081543813040032 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Godunov S. Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 4, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Kiselev S. Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Institutskaya ul. 4/1, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Kulikov I. Institute of Computational Mathematics and Mathematical Geophysics, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Lavrent'eva 6, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Mali V. Lavrent'ev Institute of Hydrodynamics, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Lavrent'eva 15, 630090, Novosibirsk, Russia aut NATIONALLICENCE 773 0- Proceedings of the Steklov Institute of Mathematics Springer US; http://www.springer-ny.com 281/1(2013-07-01), 12-26 0081-5438 281:1<12 2013 281 11501 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer